flacdec: Take samplerate, width and number of channels from the STREAMINFO

...and update it from the frame headers if it should change for some reason.

This allows playback of files with odd sample rates.

diff --git a/ext/flac/gstflacdec.c b/ext/flac/gstflacdec.c
index 34339c0..4352d08 100644 (file)
--- a/ext/flac/gstflacdec.c
+++ b/ext/flac/gstflacdec.c
@@ -559,16 +559,29 @@ gst_flac_dec_metadata_cb (const FLAC__StreamDecoder * decoder,
   switch (metadata->type) {
     case FLAC__METADATA_TYPE_STREAMINFO:{
       gint64 samples;
+      guint depth;
 
       samples = metadata->data.stream_info.total_samples;
 
       flacdec->min_blocksize = metadata->data.stream_info.min_blocksize;
       flacdec->max_blocksize = metadata->data.stream_info.max_blocksize;
       flacdec->sample_rate = metadata->data.stream_info.sample_rate;
-      flacdec->depth = metadata->data.stream_info.bits_per_sample;
+      flacdec->depth = depth = metadata->data.stream_info.bits_per_sample;
+      flacdec->channels = metadata->data.stream_info.channels;
+
+      if (depth < 9)
+        flacdec->width = 8;
+      else if (depth < 17)
+        flacdec->width = 16;
+      else
+        flacdec->width = 32;
 
       GST_DEBUG_OBJECT (flacdec, "blocksize: min=%u, max=%u",
           flacdec->min_blocksize, flacdec->max_blocksize);
+      GST_DEBUG_OBJECT (flacdec, "sample rate: %u, channels: %u",
+          flacdec->sample_rate, flacdec->channels);
+      GST_DEBUG_OBJECT (flacdec, "depth: %u, width: %u", flacdec->depth,
+          flacdec->width);
 
       /* Only scan for last block in pull-mode, since it uses pull_range() */
       if (samples == 0 && !flacdec->streaming) {
@@ -792,6 +805,7 @@ gst_flac_dec_write (GstFlacDec * flacdec, const FLAC__Frame * frame,
   GstBuffer *outbuf;
   guint depth = frame->header.bits_per_sample;
   guint width;
+  guint sample_rate = frame->header.sample_rate;
   guint channels = frame->header.channels;
   guint samples = frame->header.blocksize;
   guint j, i;
@@ -846,6 +860,16 @@ gst_flac_dec_write (GstFlacDec * flacdec, const FLAC__Frame * frame,
       goto done;
   }
 
+  if (sample_rate == 0) {
+    if (flacdec->sample_rate != 0) {
+      sample_rate = flacdec->sample_rate;
+    } else {
+      GST_ERROR_OBJECT (flacdec, "unknown sample rate");
+      ret = GST_FLOW_ERROR;
+      goto done;
+    }
+  }
+
   if (!GST_PAD_CAPS (flacdec->srcpad)) {
     GstCaps *caps;
 
@@ -869,7 +893,7 @@ gst_flac_dec_write (GstFlacDec * flacdec, const FLAC__Frame * frame,
     flacdec->depth = depth;
     flacdec->width = width;
     flacdec->channels = channels;
-    flacdec->sample_rate = frame->header.sample_rate;
+    flacdec->sample_rate = sample_rate;
 
     gst_pad_set_caps (flacdec->srcpad, caps);
     gst_caps_unref (caps);